Function calculate_checksum

common/codex32.c:178–189

}

static void calculate_checksum(const char *hrp, char *csum, const char *codex_datastr,
		      	     const struct checksum_engine *initial_engine)
{
	struct checksum_engine engine = *initial_engine;

	input_hrp(engine.generator, engine.residue, hrp, engine.len);
	input_data_str(engine.generator, engine.residue, codex_datastr, engine.len);
	input_own_target(engine.generator, engine.residue, engine.target, engine.len);

	for (size_t i = 0; i < engine.len; i++)
		csum[i] = bech32_charset[engine.residue[i]];
}

/* Pull len chars from cursor into dst. */
static bool pull_chars(char *dst, size_t len, const char **cursor, size_t *max)